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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


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"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News


October 15, 2024 Quick space links

Courtesy of BtB’s stringer Jay, who also let me know about today’s Chinese launch. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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8 comments

  • InspiredHistoryMike

    The truly amazing thing about the graph is the vertical axis.
    It’s normal to see data truncated and sometimes a huge slope is shown by slicing the range shown.
    Obviously the cost to orbit is never going to be zero, but wow, look at the change.

  • schwit

    How expensive the Space Shuttle was is eye opening.

  • Hmmm… where is SLS on that chart?

  • Mitch S.

    “Hmmm… where is SLS on that chart?”

    Yeah, I also wonder where Vulcan fits and where New Glenn will fit. Also don’t see Rocket Lab’s Electron.
    Even if Blue Origin gets New Glenn going and succeeds with some of it’s reusability I doubt it can compete with SpaceX economically.

    Someday someone will win a prize in Economics for doing a study/writing a paper on how SpaceX did it.

  • Jeff Wright

    Ironically, Saturn V has a lower cost per pound as the more prolific R-7

    Size matters.

  • Jay

    schwit,
    Yes, that was eye opening to me as well and that is what got my attention. The shuttle was supposed to drop that price, but just increased, despite the promises.

    As for Steve’s observation, we could figure it out with some napkin math. Right now there are six committed SLS launches (I remember Bob’s article on that). Yes, there are variations in the designs: Block 1, 1B, 2, etc… I will just say 100 tonnes to LEO to average it out. I will also not include the towers being rebuilt and the Orion capsules. Roughly it took $20 billion to build SLS plus the first flight and $2B per flight after. So $30 billion for all six SLS rockets. Divide it by 600 tonnes, $50,000 per kilogram.

    You guys can play with the numbers if you wish, but it is coming close to the cost of the shuttle= $51,500 per kg.

  • Edward

    Steve Golson asked; “where is SLS on that chart?

    Right now, she launches about 70 tons every three years, or so, for $4.1 billion, making for $50K to $60K per kilogram. Eventually it is supposed to launch 130 tons once a year for around $800 million, for a cost of around $6,000 per kilogram, which is competitive with the Ariane 6, which can launch multiple times annually. Too bad Ariane 6 is not competitive with the rest of the launch vehicles, making it already obsolete.
    ____________________
    The higher priced launch vehicles in the 1960s through the 1990s are probably American. American launch to orbit was around $10K per pound for that time period, and did not drop much. In the 1990s, launch customers begged for a drop in launch costs to $2,000 per pound, which they believed at the time would generate a large demand for launches. Apparently, governments thought that they already had plenty of business, because they didn’t work much on such a drastic reduction in launch costs.

    Then along came Peter Diamandis, who offered his X Prize for reusability, which was thought to be the key to lower launch costs. Although Scaled Composites won that prize, showing it can be done, Blue Origin and SpaceX pursued commercial reusable launch vehicles. SpaceX won that race, reaching the requested price tag, but Blue Origin is about to enter its reusable orbital launcher. We have seen that with lower cost to orbit, the customers were right about the demand. Fortunately, reusability also means that the booster stages are still available for more launches, so the launch cadence can increase to meet that demand. No wonder SpaceX is so busy: it has the launch vehicles on hand, whereas the other companies still have to make each vehicle for each launch.

    SpaceX alone is launching almost as many non-Starlink commercial payloads this year as worldwide total launches two decades ago, and the lower launch cost has allowed Starlink to be so successful.
    ____________________
    The graph is a little bit misleading. The dotted lines representing the price regions of the SpaceX launchers is somewhat better than the points on the graph. The points appear to be the start dates for each of the launchers and would be more representative portrayed similarly as the SpaceX launchers, where the years that each vehicle was operational are included, and would be even more representative if they could also portray the number of launches of each vehicle per year in order to answer the question of how much average launch costs were over the period. Is this what the wispy nebular cloud does with the SpaceX launchers? (I don’t think so, either.)

    For instance, Arianespace was successful because it had lower prices than American launchers, so from the mid-1980s to the mid-2010s it had a large influence on the average launch cost for payloads. SpaceX is currently launching a whole lot of mass at relatively low cost, so the right side of the red line is probably somewhat higher than is should be. Unless the red line is all launchers except SpaceX.
    ____________________
    Mitch S. wondered: “Yeah, I also wonder where Vulcan fits and where New Glenn will fit.

    Vulcan costs between $100 million to $200 million and lifts 27 tonnes for a ratio of $3,700 to $7,400 per kilogram, and New Glenn is $68 million to lift 45 tonnes for a ratio of $1,500 per kilogram. New Glenn seems to have found efficiencies that Falcon 9 had left on the table.

    Rocket Lab’s Electron costs $7.5 million 320 kg for a ratio of $23,000 per kg. It may not be the best deal, but it gets a payload to the desired orbit.

  • wayne

    John Denver
    “War Pigs”
    https://youtu.be/L5m5ycA_QHk
    (2:02)

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